For OpenBSD 5.4, Active Directory services are available via the "ads" $FLAVOR of the net/samba package (samba-3.6.15p1-ads.tgz). I've never used these services with Samba and cannot comment on its scope of capabilities.

VLANs (see vlan(4)) are configured via ifconfig(8) as individual NICs. There is a built-in dhcpd(8) daemon, as well as a package for the ISC's DHCP 4.2.5-P1 if needed.

ISC BIND 9.4.2-P2 plus patches and NSD 3.2.15 are included as authoritative DNS servers, if needed. Unbound 1.4.20 is also available as a package.

Squid 2.7, Squid 3.3.8, Squidguard 1.4, and Sarg 2.3.7 are available as packages. There are $FLAVORs of Squidguard and Sarg for LDAP, but not for Active Directory.

I don't understand what you're asking. If your question is, "does Openfire work with OpenBSD and can I use plugins?", then the answer is "Yes and yes." Openfire 3.8.1 is available as a port/package for OpenBSD 5.4. Plugin use is discussed in the README which you can find in /usr/local/share/doc/pkg-readmes/ once you install the package with pkg_add(1).

Last edited by jggimi; 28th February 2014 at 03:08 PM.
Reason: clarity, typo